_lpspi_slave_edma_handle Struct Reference

LPSPI slave eDMA transfer handle structure used for transactional API. More...

#include <fsl_lpspi_edma.h>

Public Attributes
volatile bool	isByteSwap
volatile uint8_t	fifoSize
volatile uint8_t	rxWatermark
volatile uint8_t	bytesEachWrite
volatile uint8_t	bytesEachRead
volatile uint8_t	bytesLastRead
volatile bool	isThereExtraRxBytes
uint8_t	nbytes
uint8_t *volatile	txData
uint8_t *volatile	rxData
volatile size_t	txRemainingByteCount
volatile size_t	rxRemainingByteCount
volatile uint32_t	writeRegRemainingTimes
volatile uint32_t	readRegRemainingTimes
uint32_t	totalByteCount
uint32_t	txBuffIfNull
uint32_t	rxBuffIfNull
volatile uint8_t	state
uint32_t	errorCount
lpspi_slave_edma_transfer_callback_t	callback
void *	userData
edma_handle_t *	edmaRxRegToRxDataHandle
edma_handle_t *	edmaTxDataToTxRegHandle
edma_tcd_t	lpspiSoftwareTCD [2]

Detailed Description

LPSPI slave eDMA transfer handle structure used for transactional API.

Member Data Documentation

bytesEachRead

volatile uint8_t _lpspi_slave_edma_handle::bytesEachRead

Bytes for each read RDR.

bytesEachWrite

volatile uint8_t _lpspi_slave_edma_handle::bytesEachWrite

Bytes for each write TDR.

bytesLastRead

volatile uint8_t _lpspi_slave_edma_handle::bytesLastRead

Bytes for last read RDR.

callback

lpspi_slave_edma_transfer_callback_t _lpspi_slave_edma_handle::callback

Completion callback.

edmaRxRegToRxDataHandle

edma_handle_t* _lpspi_slave_edma_handle::edmaRxRegToRxDataHandle

edma_handle_t handle point used for RxReg to RxData buff

edmaTxDataToTxRegHandle

edma_handle_t* _lpspi_slave_edma_handle::edmaTxDataToTxRegHandle

edma_handle_t handle point used for TxData to TxReg

errorCount

uint32_t _lpspi_slave_edma_handle::errorCount

Error count for slave transfer.

fifoSize

volatile uint8_t _lpspi_slave_edma_handle::fifoSize

FIFO dataSize.

isByteSwap

volatile bool _lpspi_slave_edma_handle::isByteSwap

A flag that whether should byte swap.

isThereExtraRxBytes

volatile bool _lpspi_slave_edma_handle::isThereExtraRxBytes

Is there extra RX byte.

lpspiSoftwareTCD

edma_tcd_t _lpspi_slave_edma_handle::lpspiSoftwareTCD[2]

SoftwareTCD, internal used

nbytes

uint8_t _lpspi_slave_edma_handle::nbytes

eDMA minor byte transfer count initially configured.

readRegRemainingTimes

volatile uint32_t _lpspi_slave_edma_handle::readRegRemainingTimes

Read RDR register remaining times.

rxBuffIfNull

uint32_t _lpspi_slave_edma_handle::rxBuffIfNull

Used if there is not rxData for DMA purpose.

rxData

uint8_t* volatile _lpspi_slave_edma_handle::rxData

Receive buffer.

rxRemainingByteCount

volatile size_t _lpspi_slave_edma_handle::rxRemainingByteCount

Number of bytes remaining to receive.

rxWatermark

volatile uint8_t _lpspi_slave_edma_handle::rxWatermark

Rx watermark.

state

volatile uint8_t _lpspi_slave_edma_handle::state

LPSPI transfer state.

totalByteCount

uint32_t _lpspi_slave_edma_handle::totalByteCount

Number of transfer bytes

txBuffIfNull

uint32_t _lpspi_slave_edma_handle::txBuffIfNull

Used if there is not txData for DMA purpose.

txData

uint8_t* volatile _lpspi_slave_edma_handle::txData

Send buffer.

txRemainingByteCount

volatile size_t _lpspi_slave_edma_handle::txRemainingByteCount

Number of bytes remaining to send.

userData

void* _lpspi_slave_edma_handle::userData

Callback user data.

writeRegRemainingTimes

volatile uint32_t _lpspi_slave_edma_handle::writeRegRemainingTimes

Write TDR register remaining times.

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The documentation for this struct was generated from the following file:

• fsl_lpspi_edma.h